PCB (Printed Circuit Board) detection device

Abstract

The invention discloses a PCB detection device. The device comprises a supporting mechanism; the piece moving mechanism comprises a placing box movably arranged on the supporting mechanism, a placing plate arranged in the placing box in a lifting mode and an elastic piece arranged in the placing box and used for supporting the placing plate, the placing box can move to the testing position, the top end of the placing box is open, and the placing plate is used for placing a PCB; the detection mechanism comprises a lifting driving part, a protective cover assembly and a testing assembly, the lifting driving part is arranged on the supporting mechanism and is in driving connection with the protective cover assembly, the protective cover assembly is located above the testing position and is opposite to the testing position, the lifting driving part is used for driving the protective cover assembly to ascend and descend, and the testing assembly is connected to the interior of the protective cover assembly. According to the PCB detection device provided by the invention, the risk that the PCB is interfered by an external environment during detection can be reduced, and meanwhile, the detection reliability can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB detection, and in particular to a PCB board detection device. Background Art

[0002] PCB board, also known as circuit board, makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. After the PCB board is produced, it needs to be tested.

[0003] In the related art, the PCB board detection device is easily disturbed by the external environment when detecting the PCB board, and the related test components also have a greater risk of being damaged, and the reliability is low. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a PCB board detection device, which can reduce the risk of external environment interference when the PCB board is detected, and can improve the reliability of the detection.

[0005] According to some embodiments of the present invention, the PCB board detection device includes: a supporting mechanism; a moving mechanism, including a placement box movably arranged on the supporting mechanism, a placement plate liftably arranged in the placement box, and an elastic member arranged in the placement box and supporting the placement plate, wherein the placement box can be moved to a test position, and the top end of the placement box is open, and the placement plate is used for placing a PCB board; the detection mechanism includes a lifting drive member, a protective cover assembly and a test assembly, the lifting drive member is arranged on the supporting mechanism and is drivingly connected to the protective cover assembly, the protective cover assembly is located above the test position and arranged opposite to the test position, the lifting drive member is used to drive the protective cover assembly to rise and fall, and the test assembly is connected to the inside of the protective cover assembly.

[0006] The PCB board detection device according to the embodiment of the present invention has at least the following beneficial effects:

[0007] When the PCB board detection device of the present invention is working, the moving mechanism is used to carry the PCB board and drive the PCB board to move to the test position, and then the lifting drive member drives the protective cover assembly and the test assembly to descend together, so that the test assembly contacts the PCB board and tests the PCB board. After the test assembly contacts the PCB board, the protective cover assembly will also cover the test area, reducing the risk of interference with the test process caused by the external environment. In addition, when the PCB board is subjected to the pressure of the test assembly, the PCB board will drive the placement plate to descend and cause the elastic member to shrink and deform, reducing the risk of the PCB board being damaged by pressure.

[0008] According to some embodiments of the present invention, a side wall of the placement box is provided with a limiting portion, and the limiting portion is located above the placement plate and on the movable path of the placement plate, wherein when the placement plate is abutted against the limiting portion, the elastic member is in a compressed state.

[0009] According to some embodiments of the present invention, a linear guide rail extending along a preset direction is provided on the support mechanism, the placement box is arranged on the linear guide rail, the protective cover assembly includes a protective cover connected to the lifting drive member, and the protective cover is provided with avoidance openings cooperating with the linear guide rail on both sides along the preset direction.

[0010] According to some embodiments of the present invention, the protective cover assembly further includes a buffer pad disposed around the bottom end of the protective cover.

[0011] According to some embodiments of the present invention, the detection mechanism further includes a mounting assembly, the mounting assembly is arranged in the protective cover assembly, the mounting assembly includes a mounting plate and a plurality of magnetic suction members, the mounting plate is connected to the protective cover assembly, a bottom wall of the mounting plate is provided with a plurality of connection holes, and the plurality of magnetic suction members are arranged in the plurality of connection holes in a one-to-one correspondence;

[0012] The test assembly comprises a test needle unit, and the test needle unit can be selectively inserted into any of the connection holes and magnetically matched with the magnetic attraction member in the connection hole.

[0013] According to some embodiments of the present invention, the bottom wall of the mounting plate is further provided with a clamping groove at the bottom end of each of the connecting holes; mounting grooves are further provided on both sides of each of the clamping grooves, and the top wall of the mounting groove is provided with a threaded hole;

[0014] The test needle unit includes a docking rod that passes through the connecting hole and magnetically cooperates with the magnetic suction part, a snap-in piece connected to the bottom end of the docking rod, a mounting piece connected to the two side walls of the snap-in piece, and a test needle connected to the bottom of the snap-in piece. The snap-in piece is arranged in the snap-in groove, and the two mounting pieces are respectively arranged in the mounting grooves on both sides of the snap-in groove. The mounting piece is also connected to a screw that passes through the threaded hole.

[0015] According to some embodiments of the present invention, the test needle unit further includes a sleeve connected below the clamping piece, and the top end of the test needle is detachably inserted into the sleeve.

[0016] According to some embodiments of the present invention, the protective cover assembly is provided with a ventilation opening, and the protective cover assembly is also provided with a suction fan arranged opposite to the ventilation opening.

[0017] According to some embodiments of the present invention, the outer side of the protective cover assembly is connected to a wind hood at the edge of the vent, the suction fan is arranged in the wind hood, the outer end of the wind hood is open, and a dust net is also arranged in the wind hood and located on the outside of the suction fan.

[0018] According to some embodiments of the present invention, a positioning groove is provided on the top surface of the supporting mechanism, and the positioning groove is arranged opposite to the bottom end of the protective cover assembly.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 A schematic diagram of the structure of a PCB board detection device according to an embodiment of the present invention;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of a moving member mechanism according to an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a detection mechanism of an embodiment of the present invention (the protective cover component is a cross-sectional view);

[0024] Figure 4 A schematic cross-sectional view of a protective cover assembly according to an embodiment of the present invention;

[0025] Figure 5 A partial cross-sectional structural schematic diagram of a support mechanism according to an embodiment of the present invention;

[0026] Figure 6 It is a schematic cross-sectional structural diagram of an installation assembly according to an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of a test needle unit according to an embodiment of the present invention;

[0028] Figure 8 A schematic structural diagram of a PCB board detection device according to another embodiment of the present invention;

[0029] Fig. 9 for Figure 8 Schematic diagram of the local structure of the figure shown (the transparent cover is a cross-sectional view).

[0030] Figure Number:

[0031] 100, support mechanism; 101, working plate; 102, positioning groove; 103, support leg; 104, support foot; 105, linear guide rail; 106, extension plate; 107, storage box; 108, box door; 109, transparent cover; 1091, docking piece; 110, lighting tube;

[0032] 200, moving mechanism; 201, placing box; 2011, limiting part; 202, placing plate; 203, elastic member; 204, guide rod; 205, insulating layer;

[0033] 300, detection mechanism; 301, support frame; 302, lifting drive member; 303, support plate; 304, protective cover assembly; 3041, protective cover; 30411, avoidance; 3042, buffer pad; 305, installation assembly; 3051, installation plate; 30511, connecting hole; 30512, snap-in groove; 30513, installation groove; 30514, threaded hole; 3052, magnetic suction member; 306, test assembly; 3061, test needle unit; 30611, docking rod; 30612, snap-in plate; 30613, sleeve; 30614, test needle; 30615, installation plate; 30616, screw; 307, suction fan; 308, wind hood; 309, dust net. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figure 1 As shown, a PCB board detection device provided by an embodiment of the present invention includes a supporting mechanism 100 , a moving mechanism 200 and a detection mechanism 300 .

[0038] The supporting mechanism 100 mainly plays a bearing role.

[0039] The moving mechanism 200 is movably disposed on the supporting mechanism 100 , and the moving mechanism 200 is used to carry the PCB board and drive the PCB board to move.

[0040] Combination Figure 1 and Figure 2 Specifically, the moving mechanism 200 includes a placement box 201 movably disposed on the supporting mechanism 100, a placement plate 202 liftably disposed in the placement box 201, and an elastic member 203 disposed in the placement box 201 and supporting the placement plate 202, wherein the placement box 201 can be moved to a test position, and the top of the placement box 201 is open, and the placement plate 202 is used for placing a PCB board.

[0041] More specifically, the top of the placement box 201 has an opening, and the placement box 201 can move in a preset direction relative to the support mechanism 100; the elastic member 203 is arranged in the placement box 201, and the elastic member 203 can produce vertical deformation, wherein the elastic member 203 is a spring; the placement plate 202 is arranged in the placement box 201 and is supported by the elastic member 203, and the placement plate 202 can move vertically relative to the placement box 201.

[0042] Combination Figure 1 and Figure 3 The detection mechanism 300 is arranged on the supporting mechanism 100. The detection mechanism 300 includes a lifting drive member 302, a protective cover assembly 304 and a testing assembly 306. The lifting drive member 302 is arranged on the supporting mechanism 100 and is drivingly connected to the protective cover assembly 304. The protective cover assembly 304 is located above the testing position and is arranged opposite to the testing position. The lifting drive member 302 is used to drive the protective cover assembly 304 to rise and fall. The testing assembly 306 is connected to the inside of the protective cover assembly 304.

[0043] Specifically, a support frame 301 is provided on the support mechanism 100; a lifting drive member 302 is connected to the support frame 301, and the lifting drive member 302 is connected to the protective cover assembly 304. The lifting drive member 302 can drive the protective cover assembly 304 and the test assembly 306 to rise and fall, wherein the lifting drive member 302 can be a cylinder or a hydraulic cylinder.

[0044] When the above-mentioned PCB board detection device is working, the moving mechanism 200 is used to carry the PCB board and drive the PCB board to move to the test position, and then the lifting drive member 302 drives the protective cover assembly 304 and the test assembly 306 to descend together, so that the test assembly 306 contacts the PCB board and tests the PCB board. After the test assembly 306 contacts the PCB board, the protective cover assembly 304 will also cover the test area to reduce the risk of interference with the test process caused by the external environment. In addition, when the PCB board is subjected to the pressure of the test assembly 306, the PCB board will drive the placement plate 202 to descend and cause the elastic member 203 to shrink and deform, reducing the risk of the PCB board being damaged by pressure.

[0045] like Figure 2 As shown, in some embodiments, the side wall of the placement box 201 is provided with a limiting portion 2011, which is located above the placement plate 202 and on the movable path of the placement plate 202, wherein when the placement plate 202 is against the limiting portion 2011, the elastic member 203 is in a compressed state.

[0046] It can be understood that the limiting portion 2011 is used to limit the maximum height of the placement plate 202 to reduce the risk of the placement plate 202 escaping from the placement box 201, and under normal circumstances, the elastic member 203 is in a compressed state and supports the placement plate 202 to prevent the placement plate 202 from shaking.

[0047] Furthermore, the bottom of the placement plate 202 is connected to a guide rod 204 extending vertically, the bottom of the placement box 201 is provided with a guide hole for the guide rod 204 to pass through, the elastic member 203 is a spring, the elastic member 203 is sleeved on the guide rod 204, and the guide rod 204 is used to position the elastic member 203.

[0048] It should be noted that the bottom of the placement box 201 has an avoidance area for avoiding the guide rod 204 , and the guide rod 204 can be raised and lowered along with the placement plate 202 .

[0049] Furthermore, an insulating layer 205 is connected to the inner wall of the placement box 201 . The insulating layer 205 is located above the placement plate 202 . The insulating layer 205 plays an insulating role.

[0050] like Figure 1As shown, in some embodiments, the support mechanism 100 is provided with a linear guide rail 105 extending in a preset direction, the moving mechanism 200 is provided on the linear guide rail 105 and can move in a preset direction, and the protective cover assembly 304 includes a protective cover 3041 connected to the lifting drive member 302, and both sides of the protective cover 3041 along the preset direction are provided with avoidance openings 30411 for avoiding and cooperating with the linear guide rail 105. In this way, when the protective cover 3041 descends under the action of the lifting drive member 302, it will not interfere with the linear guide rail 105.

[0051] like Figure 1 As shown, further, the protective cover assembly 304 also includes a buffer pad 3042 arranged around the bottom end of the protective cover 3041.

[0052] like Figure 4 As shown, in some embodiments, the protective cover assembly 304 is provided with a vent, and the protective cover assembly 304 is also provided with a suction fan 307 arranged opposite to the vent. Specifically, the protective cover 3041 is provided with a vent, and the suction fan 307 is connected to the protective cover 3041 and arranged opposite to the vent. When the suction fan 307 is working, it can absorb the heat generated inside the protective cover assembly 304.

[0053] Furthermore, the outer side of the protective cover assembly 304 is connected to a hood 308 at the edge of the vent, the suction fan 307 is arranged in the hood 308, the outer end of the hood 308 is open, and a dustproof net 309 located on the outer side of the suction fan 307 is also arranged in the hood 308.

[0054] It is understandable that the dustproof net 309 is used to prevent external dust from entering the protective cover 3041 and affecting the test component 306.

[0055] Combination Figure 3 and Figure 4 Furthermore, the lifting drive member 302 is connected to a support plate 303 , the protective cover assembly 304 is connected to the support plate 303 , and the support plate 303 is arranged in an arch shape to avoid the wind cover 308 .

[0056] Combination Figure 4 and Figure 5 In some embodiments, a positioning groove 102 is provided on the top surface of the support mechanism 100, and the positioning groove 102 is arranged opposite to the bottom end of the protective cover assembly 304. Driven by the lifting drive member 302, the bottom end of the protective cover assembly 304 can extend into the positioning groove 102.

[0057] Combination Figure 3 and Figure 6In some embodiments, the detection mechanism 300 also includes an installation component 305, which is disposed in the protective cover component 304. The installation component 305 includes a mounting plate 3051 and a plurality of magnetic components 3052. The mounting plate 3051 is connected to the protective cover component 304, wherein a plurality of connecting holes 30511 are provided on the bottom wall of the mounting plate 3051, and the plurality of magnetic components 3052 are disposed in the plurality of connecting holes 30511 in a one-to-one correspondence.

[0058] Combination Figure 6 and Figure 7 The test assembly 306 includes a test needle unit 3061 , which can be selectively inserted into any connection hole 30511 and magnetically matched with the magnetic attraction member 3052 in the connection hole 30511 .

[0059] It is understandable that the magnetic attraction member 3052 is a magnet, and at least a portion of the test pin unit 3061 is made of magnetic material and can be magnetically attracted by the magnetic attraction member 3052. In this way, the test pin unit 3061 can be quickly installed. In addition, by inserting the test pin unit 3061 into different connection holes 30511, different PCB boards can be tested.

[0060] Furthermore, the bottom wall of the mounting plate 3051 is provided with a snap-in groove 30512 at the bottom end of each connecting hole 30511; both sides of each snap-in groove 30512 are provided with mounting grooves 30513, and the top wall of the mounting groove 30513 is provided with a threaded hole 30514; the test pin unit 3061 includes a docking rod 30611 which is penetrated in the connecting hole 30511 and magnetically matched with the magnetic suction member 3052, and a docking rod 30611 which is connected to the bottom end of the docking rod 30611. The connecting piece 30612, the mounting pieces 30615 connected to the two side walls of the connecting piece 30612, and the test pin 30614 connected to the bottom of the connecting piece 30612, the connecting piece 30612 is arranged in the connecting slot 30512, the two mounting pieces 30615 are respectively arranged in the mounting slots 30513 on both sides of the connecting slot 30512, and the mounting pieces 30615 are also connected to the screws 30616 penetrated in the threaded holes 30514. The material of the docking rod 30611 can be a magnet or iron.

[0061] Furthermore, the test needle unit 3061 also includes a sleeve 30613 connected below the card plate 30612, and the top of the test needle 30614 is detachably inserted into the sleeve 30613. During testing, the test needle 30614 is used to contact the PCB board. When the test needle 30614 is damaged, the test needle 30614 can be disassembled and replaced.

[0062] Specifically, the sleeve 30613 is a threaded sleeve, and the top end of the test needle 30614 is a threaded section, which is inserted into the sleeve 30613 , thereby realizing the connection between the sleeve 30613 and the test needle 30614 .

[0063] like Figure 5 As shown, in some embodiments, the support mechanism 100 includes a working plate 101, a support leg 103 connected to the bottom of the working plate 101, and a support foot 104 connected to the bottom of the support leg 103. Among them, the linear guide 105 is arranged on the working plate 101, and the positioning groove 102 is also opened on the upper surface of the working plate 101.

[0064] Combination Figure 1 and Figure 5 Furthermore, the support mechanism 100 also includes an extension plate 106 connected to one side of the working plate 101, a storage box 107 is installed at the bottom of the extension plate 106, and a box door 108 is rotatably connected to one side of the storage box 107 for storing parts in and out.

[0065] Combination Figure 8 and Fig. 9 Further, a transparent cover 109 is provided on the extension plate 106, wherein a docking piece 1091 is provided at the bottom end of the transparent cover 109, and the extension plate 106 is provided with a docking groove for the docking piece 1091 to pass through. A lighting lamp is provided on the lower side of the top plate of the transparent cover 109, and the lighting lamp can provide lighting for the transmission area for convenient observation.

[0066] When the PCB board detection device of the present invention is working, the moving mechanism 200 is used to carry the PCB board and drive the PCB board to move to the test position, and then the lifting drive member 302 drives the protective cover assembly 304 and the test assembly 306 to descend together, so that the test assembly 306 contacts the PCB board and tests the PCB board. After the test assembly 306 contacts the PCB board, the protective cover assembly 304 will also cover the test area, reducing the risk of interference with the test process caused by the external environment. In addition, when the PCB board is subjected to the pressure of the test assembly 306, the PCB board will drive the placement plate 202 to descend and cause the elastic member 203 to shrink and deform, reducing the risk of the PCB board being damaged by pressure.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0068] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A PCB board detection device, characterized in that: include: Support mechanism; The moving mechanism comprises a placement box movably arranged on the supporting mechanism, a placement plate movably arranged in the placement box, and an elastic member arranged in the placement box and supporting the placement plate, wherein the placement box can be moved to a test position, and the top of the placement box is open, and the placement plate is used for placing a PCB board; The detection mechanism includes a lifting drive, a protective cover assembly and a test assembly. The lifting drive is arranged on the supporting mechanism and is connected to the protective cover assembly. The protective cover assembly is located above the test position and is arranged opposite to the test position. The lifting drive is used to drive the protective cover assembly to rise and fall. The test assembly is connected to the inside of the protective cover assembly.

2. The PCB board detection device according to claim 1, characterized in that: The side wall of the placement box is provided with a limiting portion, and the limiting portion is located above the placement plate and on the movable path of the placement plate, wherein when the placement plate is abutted against the limiting portion, the elastic member is in a compressed state.

3. The PCB board detection device according to claim 1, characterized in that: The support mechanism is provided with a linear guide rail extending along a preset direction, the placement box is arranged on the linear guide rail, the protective cover assembly includes a protective cover connected to the lifting drive member, and the protective cover is provided with avoidance openings cooperating with the linear guide rail on both sides along the preset direction.

4. The PCB board detection device according to claim 3, characterized in that: The protective cover assembly also includes a buffer pad arranged around the bottom end of the protective cover.

5. The PCB board detection device according to claim 1, characterized in that: The detection mechanism further includes a mounting assembly, the mounting assembly is arranged in the protective cover assembly, the mounting assembly includes a mounting plate and a plurality of magnetic suction members, the mounting plate is connected to the protective cover assembly, a plurality of connection holes are arranged on the bottom wall of the mounting plate, and the plurality of magnetic suction members are arranged in the plurality of connection holes in a one-to-one correspondence; The test assembly comprises a test needle unit, and the test needle unit can be selectively inserted into any of the connection holes and magnetically matched with the magnetic attraction member in the connection hole.

6. The PCB board detection device according to claim 5, characterized in that: The bottom wall of the mounting plate is further provided with a clamping groove at the bottom end of each of the connecting holes; mounting grooves are further provided on both sides of each of the clamping grooves, and a threaded hole is provided on the top wall of the mounting groove; The test needle unit includes a docking rod that passes through the connecting hole and magnetically cooperates with the magnetic suction part, a snap-in piece connected to the bottom end of the docking rod, a mounting piece connected to the two side walls of the snap-in piece, and a test needle connected to the bottom of the snap-in piece. The snap-in piece is arranged in the snap-in groove, and the two mounting pieces are respectively arranged in the mounting grooves on both sides of the snap-in groove. The mounting piece is also connected to a screw that passes through the threaded hole.

7. The PCB board detection device according to claim 6, characterized in that: The test needle unit further comprises a sleeve connected below the clamping piece, and the top end of the test needle is detachably inserted into the sleeve.

8. The PCB board detection device according to claim 1, characterized in that: The protective cover assembly is provided with a vent, and the protective cover assembly is also provided with a suction fan arranged opposite to the vent.

9. The PCB board detection device according to claim 8, characterized in that: The outer side of the protective cover assembly is connected to a wind hood at the edge of the vent, the suction fan is arranged in the wind hood, the outer end of the wind hood is open, and a dustproof net is also arranged in the wind hood and located on the outer side of the suction fan.

10. The PCB board detection device according to claim 1, characterized in that: A positioning groove is provided on the top surface of the supporting mechanism, and the positioning groove is arranged opposite to the bottom end of the protective cover assembly.

Images